Axle-spindle-turning machine.



PATENTED JUNE 18. 1901' J. JOHNSON.

AXLE SPINDLB TURNING MACHINE.

APPLIOATION FILED MAY 3.1906.

3 SHEETS-$111131 1 John Johnson wi bwmw mane/1 o v n PATENTED JUNE 18, 1907.

J; JOHNSON. AXLE SPINDLB TURNING MACHINE.

3 SHEETS-SHEET 2.

APPLIUATION FILED MAY 3.1906.

rmmumn PATENTED 111N318, 1907. I J. JOHNSON. AXLE SPINDLE TURNING MACHINE.

APPLICATION FILED MAY 3.1906.

UNITED STATES PATENT orrron.

JOHN JOHNSON, OF SALT LAKE CITY, UTAH.

AXLE-SPlNDLE-TURNING MACHINE.

To all whom it may concern.-

Be it known that 1, JOHN JOHNSON, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented certain new and useful Improvements in Axle-Spindle- Turning Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in machines for turning the spindles of vehicle axles and for doing similar work.

One object of the invention is to provide a simple and practical portable machine by means of which the axle spindles of buggies and other vehicles may be turned down when worn, and their original taper maintained.

With the above and other objects in view, the invention consists in certain novel fea. tures of construction, combination and arrangement of parts hereinafter described and claimed.

In the accompanying drawings-Figure 1 is a perspective view showing my improved machine; applied to a vehicle axle and its s indle; Fig. 2 is a chine; Fig. 3 is a vertical longitudinal sectional view; Fig. 4 is an elevation of the outer end of the machine; Figs. 5 and 6 are vertical transverse sectional views, taken respectively on the planes indicated by the lines 5-5 and 6-6 in Fig. 3; and Fig. 7 is a detail view of the sectional nut by means of which the cutter carrier is connected to the feed screw.

Referring more particularly to the drawings, A denotes the axle of a buggy or other vehicle, which has the usual longitudinallytapered spindle S provided at its inner end with a collar C and at its outer ends with a reduced screw-threaded end E, and the numeral 1 denotes my improved portable machine for turning the spindle and maintaining its taper. This machine comprises a collar 2 adapted to be removably clamped upon the axle A by means of set screws 3, which space it from and center it upon said axle; Said collar is of cylindrical form and has at its outer end an annular flange 4 and at a suitable point adjacent to its inner end a projecting stud 5 formed with a threaded-opening to receive a screw 6, which is adapted to serve as a trip. Removably mounted upon the sleeve or collar 2 is a rotatable frame or carriage 7 consisting of inner and outer Specification of Letters Patent. Application filed May 3, 1906'. Serial N- 315,113.

top plan view of the ma-v Patented June 18 1907.

heads or end members 8, 9, connected by guide rods 10. These heads or end members 8, 9, are preferably in the form of castings, the inner one 8 having a central opening of greater diameter than the collar or sleeve 2 and its flange 4 and being removably retained upon said parts by a substantially U- shaped washer or key 11, which is inserted between said flange and the adjacent face of the head 8, as clearly shown in Figs. 2 and of the drawings.

The heads 8, 9, are formed adjacent to their ends with openings through which the cylindrical guide rods 10 project, and in which they slide, so that by means of set screws 12, said heads may be adjusted toward and from each other and'secured in an adjusted position.

Slidable longitudinally of the frame or carriage 7 is a cutter carrier 14, also preferably in the form of acasting, and havin at its center a large opening, through which the spindle extends. Said carrier has at diametrically opposite points projecting lugs 15, which are bored to permit the guide rods 10 to slide freely therethrough, and one of the lugs is also formed with an opening, through which the longitudinally-extending feed screw 16 extends. Said carrier is further provided with arms 15 which are, at right angles to the lugs 15. Said screw is provided for the purpose of feeding the cutter carrier 14 longitudinally u on the frame or carriage 7, and has its en s mounted to turn in the heads 8, 9. Upon the outer end of said screw is provided a hand-wheel 17, and upon its inner end is secured a fivepointed star-shaped wheel 18, which is so disposed that one of its points engages the screw 6 upon each rotation of the frame or carriage 7 .to partly turn said feed screw. The lug or projection 15 is slottedor bifurcated to receive a sectional nut which engages the threads of the feed-screw 16 when it is desired to cause the latter to feed the carrier 14 longitudinally upon the frame 7, and which is disengaged from the same when it is desired to quickly shift the carrier in either direction upon said frame. This sectional nut preferably consists of two members 19, 20, each of which is in the form of a ring or an annular band 21 having a half nut 22 projecting from it. These members or sections 19, are adapted to fit in the space formed by slotting'or bifurcating the projecting lug 15, and the adjacent guide rod 10 projects through alining openings in their ring portions 21, so that they swing upon said rod 10 to permit their opposing half nut portions 22 to be moved into and out of engagement with the threads of the feed screw 16. In order to detachably secure said nut sections together and in engagement with the feed-screw, I provide a screw 23 upon their nut portions 22, as clearly shown in the drawings.

Each arm 15 of the cutter carrier 14 has projecting from it one or more lugs 24, which are grooved to receive cutting tools 26. The latter are retained in said grooves by straps 27 secured upon said lugs and they are adjusted o'r fed inwardly by'means of screws 28, provided in threaded ears upon said lugs and having their inner ends engaged with the outer ends of the cutters 26. One of the arms 15 has its outer face grooved to receive a crank-handle 29, by means of which the frame or carriage 7, and hence the cutters, are rotated. This handle is referably adjustably secured in its groove y means of a screw 30 carried by said crank handle, and it may be of any desired form and construction.

The outer end of the frame or carriage 7 is supported by an end pin 31, which extends through an opening 32in the outer head 9 of the frame or carriage, and has its pointed inner end seated in a centrally-disposed recess or seat in the outer end of the threaded portion E of the spindle S. This end pin 31 serves as a pivot and support for the outer end of the frame and it is adjustably secured in the opening 32 by means of a set screw 33.

In order to maintain the usual taper upon the spindles of buggy or other vehicle axles that are turned by the machine, the hole 32 is not bored in exact longitudinal alinement with the axis of the remaining portion of the machine, but slightly eccentric or off said axis, as shown in the drawings. In practice, I preferably bore the opening 32 one-sixteenth of an inch higher or nearer the side of the frame or carriage 7 from which the handle projects, while the opening in the head 8 is bored concentrically, so that the cutters 26 will be fed by the screw 1 6 in a longitudinallyinclined path to produce a taper of about one-eighth of an inch upon the spindle S, this being the customary taper for buggy spindles. It will be understood that this eccentricity of the opening 32 will be such as is required by the desired taper of the spindle, and that when said opening 32 is concentric or in longitudinal alinement with the central axis of the machine, the spindle or other object cut by the tools 26 will be turned to a true cylindrical form.

In using the machine, the collar or sleeve 2 is first centered and clamped upon the axle, and the frame or carriage 7 is then applied to the spindle and secured upon the outer end of said collar by means of the U-shaped washer or key, as previously stated, and as shown in Fig. 1. The latch 23 is then oper ated to release the members of the sectional nut fiom the feed screw, and the cutter carrier moved outwardly to the outer end of the spindle.- The members of the sectional nut are then swung together and upon the feed screw and secured by the latch, and the cutters 26 are then adjusted so that they will cut the spindle the desired depth. The handle 29 is then turned to rotate the frame or carriage 7 and cause the cutters to cut the spindle. Upon each rotation of the frame 7, the trip or pin 6 will engage one of the points of the wheel 18 and give the feed screw a partial rotation, so that the carrier 14 will be fed from end to end of the spindle. When the cutters reach the collar C of the spindle, they are then adjusted so that the collar is cut to the same extent as the spindle.

It will be seen that by disengaging the members of the sectional nut from the feed screw and temporarily dispensing with the use of the same, and by substituting a head having its opening 32 with its center lying in a common plane with the center of the guide rods 10 and by using suitable tools instead of the cutters 26 I am able to cut'the threads E on the outer end of the spindle, in this operation one dull cutter being used to make the feed by following in the old or worn threads, and another cutter being provided for doing the recutting of the threads.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood, without re-' quiringa more extended explanation.

Whi e I have shown and described the preferred embodiment of my invention, it will be understood that I do not wish to be limited to the exact showing herein set forth, since various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention, as defined by the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by Letters-Patent, is,-

The hereindescribed axle spindle turning machine comprising a collar having means for centering and securing the same on an axle and provided with a radially extending arm having a trip projecting therefrom, a frame comprising outer and inner heads and guide rods connecting them, said outer head having a pivot pin to engage the outer end of the axle spindle and support the outer end of the frame for revolution, and said inner head being detachably and revolubly mounted on the collar, a carriage having lugs slidably mounted on the guide rods and radial arms at an angle to said lugs, said arms having I oo guide devices and lugs beyond the outer ends with the trip to rotate said feed screw by a of such guide devices and one of said arms step-by-step movement when the frame is also having a lever whereby such carriage torevolved, and a nut secured to the carriage gether with the frame may be revolved and engaged by the feed screw.

5 around the axle spindle, cutters movable ra- In testimonyfwhereof I have hereunto set dially in the guide devices of the said arms of my hand in presence of two subscribing wit said carriage, adjusting screws for said outnesses.

ters operating in threaded openingsin the JOHN JOHNSON said lugs of said arms, a feed screw mounted Witnesses: :0 in and connecting the heads and provided at FRANK HOFFMAN,

its inner end with a star Wheel for coaction WADE LOOFBOUROW. 

